CN106678464A - Pipeline sealing connecting structure - Google Patents
Pipeline sealing connecting structure Download PDFInfo
- Publication number
- CN106678464A CN106678464A CN201710136929.0A CN201710136929A CN106678464A CN 106678464 A CN106678464 A CN 106678464A CN 201710136929 A CN201710136929 A CN 201710136929A CN 106678464 A CN106678464 A CN 106678464A
- Authority
- CN
- China
- Prior art keywords
- collar flange
- annular
- ring
- flange
- seal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/003—Auxiliary devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/036—Flanged joints the flanges being connected by members tensioned axially characterised by the tensioning members, e.g. specially adapted bolts or C-clamps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gasket Seals (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
The invention relates to a pipeline sealing connecting structure. The pipeline sealing connecting structure comprises an annular gap which is formed in the inner edge of the end part of a first connecting pipeline, a first annular convex edge, a circular arc shaped annular bump which extends from a head part of a second connecting pipeline, a second annular convex edge and a plurality of elastic bolt connecting parts, wherein the annular gap is corresponding to the circular arc shaped annular bump and is in match with the circular arc shaped annular bump by shape; an annular groove is formed in the middle part of the first annular convex edge; the sidewall of the annular groove is a first annular inclined wall which is deviated from the axial direction; a third annular convex edge which is protruded toward the end surface of the second connecting pipeline is arranged in the middle part of the second annular convex edge; the third annular convex edge is in match with the annular groove and is provided with a second annular inclined wall which is corresponding to the first annular inclined wall; the outer edge of the first annular convex edge is connected with the outer edge of the second annular convex edge through the plurality of bolt connecting parts in an axial tensioning manner. According to the pipeline sealing connecting structure, the axial direction of the pipeline can be adaptively adjusted during mounting, so that the sealing effect is good; in case of breaking, the flexible connecting property acts, and meanwhile, the self-recovering effect is realized.
Description
Technical field
The present invention relates to a kind of seal for pipe joints attachment structure.
Background technology
Present chemical industry connecting pipe, is substantially and is connected by flange, and flange is called ring flange or bead, and flange is to make
The part that pipe is connected with each other with pipe and with valve, is connected to pipe end.Flange is generally employed in pairs, and a pair of flanges are by setting
Mutual corresponding mounting hole, is connected pipeline through mounting hole by connectors such as bolts well.The crushing resistance of flange
It is the important indicator of gauge flange quality, while being also to ensure the guarantee that pipeline normally runs.Flange connection is also simultaneously a kind of
It is rigidly connected, once being subject to external force, then can causes leakage, rigidly connected benefit is a lot, but its drawback is also apparent from.
The content of the invention
A kind of defect in order to make up prior art of the invention, there is provided seal for pipe joints connection that can be convenient for people to use
Structure, using the attachment structure, can just complete self-adapting seal in installation process, while good sealing effect, this is tightly connected
Structure has soft connection performance, can also have after the first connecting pipe and the second connecting pipe axle center line skew fine
Sealing effectiveness.
The present invention is achieved through the following technical solutions：
A kind of seal for pipe joints attachment structure, the pipeline includes the first connecting pipe and the second connecting pipe；Attachment structure
The first ring-type projected radially outward including the ring-type breach on edge, the first connecting pipe afterbody in the first connecting pipe end is convex
Arc-shaped annular protrusion that edge, the second connecting pipe head stretch out, the head of the second connecting pipe project radially outward second
Collar flange and multigroup Elastic Bolts connector；
- ring-type breach is corresponding with arc-shaped annular protrusion and form fit；
Annular recess is provided with the middle part of the first collar flange between-ring-type breach and the first collar flange outer rim；Ring-type
Groove at least side cell wall is the first annular skew wall for deviateing axial direction；
It is provided with the middle part of the second collar flange between-arc-shaped annular protrusion and the second collar flange outer rim and is connected to second
Connect the 3rd collar flange of pipeline end face protrusion；3rd collar flange and annular recess are matched, and the 3rd collar flange is provided with
The second annular skew wall corresponding with the first annular skew wall；
Between the outer rim of the outer rim of the-the first collar flange and the second collar flange by multigroup Elastic Bolts connector shaft to
Tense connection
L-shaped annular seal packing ring is provided between-ring-type breach and arc-shaped annular protrusion.
Preferably, leaving gap between the first collar flange and the second collar flange；Near axial line in-annular recess
Inner side cell wall be deviate axial direction first annular skew wall；Correspondingly, the madial wall of the 3rd collar flange is the second annular skew wall；
The axial dimension in the gap coordinates stroke more than the 3rd collar flange and the axially maximum of annular recess；
Preferably, in gap between the first collar flange and the second collar flange, the second annular skew wall to circular arc
Toroidal cavity is left between shape annular protrusion；Interference is filled with airtight and watertight padding in toroidal cavity.
Preferably, the installation gap communication seals filler between the ring-type breach and arc-shaped annular protrusion；Correspondence
Ground, the airtight and watertight padding in the L-shaped annular seal packing ring outer end connection toroidal cavity.
Preferably, Elastic Bolts connector is made up of spring, bolt and nut, the first collar flange and the second ring-type are convex
The outer edge of edge sets corresponding screw respectively, the screw on the collar flange of screw bolt passes first and the second collar flange, then
It is connected with nut, in bolt, elasticity is pressed between bolt head and the first collar flange, the second collar flange spring housing.
Preferably, the central shaft between the first connecting pipe and the second connecting pipe can 0~8 degree of relative depature.
Preferably, Elastic Bolts connector quantity is no less than three groups, multiple Elastic Bolts connectors are regularly arranged.
Compared with existing flange, beneficial effects of the present invention are as follows：
As soon as, when mounted, can self adaptation find installation position, it is inclined to be difficult dress, good sealing effect.
2nd, because self adaptation effect is good, after distortion is collided, good sealing effectiveness is not only still kept, and
Easily recover, you can on the premise of ensureing sealing again, reach bending interior to a certain degree, can still keep sealing.
Brief description of the drawings
Fig. 1：It is sectional structure chart of the present invention.
Specific embodiment
With reference to Figure of description, the invention will be further described.
A kind of seal for pipe joints attachment structure as shown in Figure 1, the pipeline of the attachment structure includes the first connecting pipe 1 and the
Two connecting pipes 2, meanwhile, attachment structure includes ring-type breach 13, first connecting pipe 1 on edge in the end of the first connecting pipe 1
The arc-shaped annular protrusion 23, second that the first collar flange 12 that afterbody is projected radially outward, the head of the second connecting pipe 2 stretch out
The second collar flange 22 and multigroup Elastic Bolts connector that the head of connecting pipe 2 is projected radially outward.Wherein：
Ring-type breach 13 is corresponding with arc-shaped annular protrusion 23 and form fit.The collar flange of ring-type breach 13 and first
The middle part of the first collar flange 12 between 12 outer rims is provided with annular recess 11.At least side cell wall of annular recess 11 is off-axis
To first annular skew wall.In the second collar flange 22 between the outer rim of 23 and second collar flange of arc-shaped annular protrusion 22
Portion is provided with the 3rd collar flange 21 protruded to the end face of the second connecting pipe 2.3rd collar flange 21 and annular recess 11 are matched,
And the 3rd collar flange 21 be provided with the second annular skew wall corresponding with above-mentioned first annular skew wall.Outside first collar flange 12
By the connection of multigroup Elastic Bolts connector axial tightening, ring-type breach 13 and circle between the outer rim of edge and the second collar flange 22
L-shaped annular seal packing ring is provided between arcuate annular projection 23.When mounted, multigroup Elastic Bolts connector axial tightening connection
When, first annular skew wall and the second annular skew wall self adaptation coordinate centering, along with Elastic Bolts connector has elasticity, because
This installation is very convenient, just there is good self adaptation effect when installation.The ring of above-mentioned first collar flange 12 and second
Gap is left between shape flange 22.And the inner side cell wall in annular recess 11 near axial line is the first annular oblique of deviation axial direction
Wall；Correspondingly, the madial wall of the 3rd collar flange 21 is the second annular skew wall.The axial dimension in above-mentioned gap is more than the 3rd ring-type
Flange 21 and the axially maximum of annular recess 11 coordinate stroke.When the back axis of self adaptation is completely the same, with multigroup elastic spiral shell
Fitting axial tightening is tethered, the meeting of the 3rd collar flange 21 range inserts annular recess 11, and the 3rd collar flange 21 is put completely
After entering, because gap axial direction spacing coordinates stroke more than axially maximum.Therefore, the first collar flange 12 and the second collar flange
Gap necessarily is left between 22, accordingly even when sealing is also no complete, can also be by adding peaceful Elastic Bolts connector so that the
One collar flange 12 and the second collar flange 22 have deformation space, and this structure is different from flange.
In order to have preferably sealing effectiveness, in the gap between the first collar flange 12 and the second collar flange 22,
To toroidal cavity is left between arc-shaped annular protrusion 23, interference is filled with airtight and watertight padding 6 to second annular skew wall in toroidal cavity.
Because the second annular skew wall and the madial wall of annular recess 11 are oblique cooperations, toroidal cavity here can be with the first collar flange
12 and the second gap between collar flange 22 diminish, toroidal cavity diminishes therewith, and compressing airtight and watertight padding 6 makes its interference, reaches
The sealing effectiveness of high-quality.
Central shaft 7,71 between first connecting pipe 1 and the second connecting pipe 2 can 0~8 degree of relative depature, above-mentioned ring-type
The receiving size of groove 11, it is anterior more than the 3rd collar flange 21, make it have and deviate possible, prevent hard destruction.
Further, the installation gap communication seals filler 6 between above-mentioned ring-type breach 13 and arc-shaped annular protrusion 23.
Accordingly, the airtight and watertight padding 6 in above-mentioned L-shaped annular seal packing ring outer end connection toroidal cavity.
Above-mentioned Elastic Bolts connector is made up of spring 4, bolt 3 and nut 31, the first collar flange 12 and the second ring-type
The outer edge of flange 22 sets corresponding screw respectively, and bolt 3 is sequentially passed through on the first collar flange 12 and the second collar flange 22
Screw, then be connected with nut 31, spring 4 is enclosed within bolt 3, and elasticity is pressed in the head of bolt 3 and the first collar flange 12, second
Between collar flange 22.Elastic Bolts connector quantity is no less than three groups, and multiple Elastic Bolts connectors are regularly arranged.
Installation method：First, L-shaped annular seal ring 13 is put into ring-type breach 13, airtight and watertight padding 6 is then put into
Between three collar flanges 21 and arc-shaped annular protrusion 23, Elastic Bolts connector is sequentially arranged at the He of the first collar flange 12
On second collar flange 22, the first connecting pipe 1 and the slow axial tightening of the second connecting pipe 2 are coupled together, finally, will
Bolt 3 is tightened, in rundown process, the first collar flange 12 and the gap shrinks of the second collar flange 22, the first connecting pipe 1 and
The axle center self adaptation of two connecting pipes 2 is unanimously got up, meanwhile, airtight and watertight padding 6 is also compacted, and is tightly connected it.
Above-mentioned above is only, to presently preferred embodiments of the present invention, not the scope of the present invention to be defined, therefore is not being taken off
On the premise of design spirit of the present invention, this area ordinary skill technical staff construction above-mentioned to the present invention, feature and principle
The equivalence changes or decoration made, all should fall into the protection domain of the present patent application patent.
Claims (7)
1. a kind of seal for pipe joints attachment structure, the pipeline includes the first connecting pipe (1) and the second connecting pipe (2)；It is special
Levy and be：Attachment structure includes ring-type breach (13), the first connecting pipe (1) afterbody on edge in the first connecting pipe (1) end
Arc-shaped annular protrusion (23), that the first collar flange (12) for projecting radially outward, the second connecting pipe (2) head stretch out
The second collar flange (22) and multigroup Elastic Bolts connector that the head of two connecting pipes (2) is projected radially outward；
- ring-type breach (13) is corresponding with arc-shaped annular protrusion (23) and form fit；
It is recessed ring-type to be provided with the middle part of the first collar flange (12) between-ring-type breach (13) and the first collar flange (12) outer rim
Groove (11)；Annular recess (11) at least side cell wall is the first annular skew wall for deviateing axial direction；
It is provided with the middle part of the second collar flange (22) between-arc-shaped annular protrusion (23) and the second collar flange (22) outer rim
To the 3rd collar flange (21) that the second connecting pipe (2) end face protrudes；3rd collar flange (21) and annular recess (11)
Match somebody with somebody, and the 3rd collar flange (21) is provided with the second annular skew wall corresponding with the first annular skew wall；
Pass through multigroup Elastic Bolts connector between the outer rim of the-the first collar flange (12) and the outer rim of the second collar flange (22)
Axial tightening is connected
L-shaped annular seal packing ring is provided between-ring-type breach (13) and arc-shaped annular protrusion (23).
2. a kind of seal for pipe joints attachment structure according to claim 1, it is characterised in that：
Gap is left between-the first collar flange (12) and the second collar flange (22)；
Inner side cell wall in-annular recess (11) near axial line is the first annular skew wall for deviateing axial direction；Correspondingly, the 3rd ring
The madial wall of shape flange (21) is the second annular skew wall；The axial dimension in the gap is more than the 3rd collar flange (21) and ring-type
The axially maximum of groove (11) coordinates stroke.
3. a kind of seal for pipe joints attachment structure according to claim 1, it is characterised in that：
In-the gap between the first collar flange (12) and the second collar flange (22), the second annular skew wall to arc-shaped ring
Toroidal cavity is left between shape projection (23)；Interference is filled with airtight and watertight padding in toroidal cavity.
4. a kind of seal for pipe joints attachment structure according to claim 4, it is characterised in that：
- installation gap communication seals the filler between the ring-type breach (13) and arc-shaped annular protrusion (23)；Accordingly, institute
State the airtight and watertight padding in L-shaped annular seal packing ring outer end connection toroidal cavity.
5. a kind of seal for pipe joints attachment structure according to claim 4, it is characterised in that：Elastic Bolts connector is by spring
(4), bolt (3) and nut (31) are constituted, and the outer edge of the first collar flange (12) and the second collar flange (22) sets right respectively
The screw answered, bolt (3) sequentially passes through the screw on the first collar flange (12) and the second collar flange (22), then with nut
(31) connect, spring (4) is enclosed within bolt (3), and elasticity is pressed in bolt (3) head and the first collar flange (12), the second ring-type
Between flange (22).
6. a kind of seal for pipe joints attachment structure according to claim 4, it is characterised in that：First connecting pipe (1) and
Central shaft (7) between two connecting pipes (2) can 0~8 degree of relative depature.
7. a kind of seal for pipe joints attachment structure according to claim 6, it is characterised in that：Elastic Bolts connector quantity is not
Less than three groups, multiple Elastic Bolts connectors are regularly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136929.0A CN106678464B (en) | 2017-03-09 | 2017-03-09 | A kind of seal for pipe joints connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710136929.0A CN106678464B (en) | 2017-03-09 | 2017-03-09 | A kind of seal for pipe joints connection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106678464A true CN106678464A (en) | 2017-05-17 |
| CN106678464B CN106678464B (en) | 2018-10-19 |
Family
ID=58828854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710136929.0A Active CN106678464B (en) | 2017-03-09 | 2017-03-09 | A kind of seal for pipe joints connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678464B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443613A (en) * | 2018-04-23 | 2018-08-24 | 浙江想能睡眠科技股份有限公司 | A kind of airtight inflatable interface of fast insert-pull of soft or hard adjustable bed mattess |
| CN108591562A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of Novel discharging valve installation equipment |
| CN108709033A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | Pipe flange |
| CN109666971A (en) * | 2017-10-16 | 2019-04-23 | 北京北方华创微电子装备有限公司 | Growth furnace |
| CN109826287A (en) * | 2019-03-05 | 2019-05-31 | 戴奕 | A kind of construction sewer pipe connection structure |
| CN111255963A (en) * | 2020-01-15 | 2020-06-09 | 湖北气佬板节能技术有限公司 | Air compressor machine is with preventing leaking adapting unit |
| CN111645032A (en) * | 2020-06-17 | 2020-09-11 | 应文龙 | Butt joint equipment for metal thin-wall air pipe in smoke-discharging environment-friendly building engineering and construction method thereof |
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| GB2202019A (en) * | 1987-03-13 | 1988-09-14 | Major Edward Athelstan Halford | Flanged pipe couplings |
| KR100657178B1 (en) * | 2006-08-31 | 2006-12-15 | 주식회사 도화종합기술공사 | Water supply pipe fixing unit |
| CN202769158U (en) * | 2012-08-31 | 2013-03-06 | 江苏晨光波纹管有限公司 | Wear-resistant and corrosion-resistant high pressure rotating compensator |
| CN204127527U (en) * | 2014-10-20 | 2015-01-28 | 中国核动力研究设计院 | A kind of flange sealing structure |
| CN104344117A (en) * | 2013-08-10 | 2015-02-11 | 江苏科茵格特种沥青有限公司 | Connecting flange for asphalt pipelines |
| EP2876342A2 (en) * | 2013-10-17 | 2015-05-27 | Witzenmann GmbH | Connection with a corrugated hose line element |
| CN104696631A (en) * | 2013-12-06 | 2015-06-10 | 大连愚人设计有限公司 | Sealing flange capable of bearing complex torsion |
| CN206831002U (en) * | 2017-03-09 | 2018-01-02 | 金华市唯创机械技术研发有限公司 | Seal for pipe joints attachment structure |
-
2017
- 2017-03-09 CN CN201710136929.0A patent/CN106678464B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2202019A (en) * | 1987-03-13 | 1988-09-14 | Major Edward Athelstan Halford | Flanged pipe couplings |
| KR100657178B1 (en) * | 2006-08-31 | 2006-12-15 | 주식회사 도화종합기술공사 | Water supply pipe fixing unit |
| CN202769158U (en) * | 2012-08-31 | 2013-03-06 | 江苏晨光波纹管有限公司 | Wear-resistant and corrosion-resistant high pressure rotating compensator |
| CN104344117A (en) * | 2013-08-10 | 2015-02-11 | 江苏科茵格特种沥青有限公司 | Connecting flange for asphalt pipelines |
| EP2876342A2 (en) * | 2013-10-17 | 2015-05-27 | Witzenmann GmbH | Connection with a corrugated hose line element |
| CN104696631A (en) * | 2013-12-06 | 2015-06-10 | 大连愚人设计有限公司 | Sealing flange capable of bearing complex torsion |
| CN204127527U (en) * | 2014-10-20 | 2015-01-28 | 中国核动力研究设计院 | A kind of flange sealing structure |
| CN206831002U (en) * | 2017-03-09 | 2018-01-02 | 金华市唯创机械技术研发有限公司 | Seal for pipe joints attachment structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666971A (en) * | 2017-10-16 | 2019-04-23 | 北京北方华创微电子装备有限公司 | Growth furnace |
| CN109666971B (en) * | 2017-10-16 | 2020-11-10 | 北京北方华创微电子装备有限公司 | Growth furnace |
| CN108443613A (en) * | 2018-04-23 | 2018-08-24 | 浙江想能睡眠科技股份有限公司 | A kind of airtight inflatable interface of fast insert-pull of soft or hard adjustable bed mattess |
| CN108443613B (en) * | 2018-04-23 | 2024-05-14 | 浙江想能睡眠科技股份有限公司 | Quick plug airtight inflation interface of soft or hard adjustable mattress |
| CN108591562A (en) * | 2018-07-06 | 2018-09-28 | 安徽姆大陆科技发展有限公司 | A kind of Novel discharging valve installation equipment |
| CN108709033A (en) * | 2018-08-06 | 2018-10-26 | 常州奥特斯丹智能装备科技有限公司 | Pipe flange |
| CN109826287A (en) * | 2019-03-05 | 2019-05-31 | 戴奕 | A kind of construction sewer pipe connection structure |
| CN111255963A (en) * | 2020-01-15 | 2020-06-09 | 湖北气佬板节能技术有限公司 | Air compressor machine is with preventing leaking adapting unit |
| CN111645032A (en) * | 2020-06-17 | 2020-09-11 | 应文龙 | Butt joint equipment for metal thin-wall air pipe in smoke-discharging environment-friendly building engineering and construction method thereof |
| CN111645032B (en) * | 2020-06-17 | 2022-01-21 | 广州市桃园建材有限公司 | Butt joint equipment for metal thin-wall air pipe in smoke-discharging environment-friendly building engineering and construction method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106678464B (en) | 2018-10-19 |
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Effective date of registration: 20200902 Address after: 210000 138 times Avenue, Liuhe Economic Development Zone, Nanjing, Jiangsu. Patentee after: Jiangsu Langbo pipe fittings manufacturing Co.,Ltd. Address before: 321000 Zhejiang Province, Jinhua city Wucheng District Xianghua Street No. 418 building three Room 302 Patentee before: JINHUA WEICHUANG MACHINERY TECHNOLOGY RESEARCH AND DEVELOPMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200911 Address after: 210000 138 times Avenue, Liuhe Economic Development Zone, Nanjing, Jiangsu. Patentee after: JIANGSU LANGBOONE PIPELINE MANUFACTURING Co.,Ltd. Address before: 210000 138 times Avenue, Liuhe Economic Development Zone, Nanjing, Jiangsu. Patentee before: Jiangsu Langbo pipe fittings manufacturing Co.,Ltd. |